{"id":381,"date":"2018-04-01T10:41:38","date_gmt":"2018-04-01T01:41:38","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=381"},"modified":"2023-04-27T21:55:59","modified_gmt":"2023-04-27T12:55:59","slug":"%e3%80%90java%e3%82%b5%e3%83%bc%e3%83%96%e3%83%ac%e3%83%83%e3%83%88%e3%80%91%e3%82%bb%e3%83%83%e3%82%b7%e3%83%a7%e3%83%b3%e7%ae%a1%e7%90%86%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=381","title":{"rendered":"\u3010Java\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u3011\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u306b\u3064\u3044\u3066"},"content":{"rendered":"<p>Java\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u3067\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u78ba\u7acb\u3059\u308b\u5834\u5408\u306f\u4e0b\u8a18\u306e\u69cb\u6587\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\n   protected void doGet(HttpServletRequest request,HttpServletResponse response)\r\n     throws ServletException,IOException{\r\n     HttpSession session=request.getSession(true);\r\n  }\r\n<\/pre>\n<p>Java\u3067\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u306f\u3001\u300cjavax.servlet.http.HttpSession\u300d\u3068\u3044\u3046\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u6a5f\u80fd\u306b\u306a\u308a\u3001\u300cHttpServletRequest\u300d\uff08\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u95a2\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\uff09\u304b\u3089\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>getSession\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u306etrue\u3068false\u306e\u9055\u3044<\/h2>\n<h3>getSession\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3092true\u3068\u3057\u305f\u5834\u5408<\/h3>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\n\r\nHttpSession session=request.getSession(true);\r\n\r\n<\/pre>\n<p>\u65e2\u306b\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u78ba\u7acb\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u73fe\u5728\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u8fd4\u3057\u3001\u78ba\u7acb\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u65b0\u3057\u3044\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u4f5c\u308a\u307e\u3059\u3002<br \/>\n\u306a\u306e\u3067\u3001\u901a\u5e38\u306eWeb\u30a2\u30d7\u30ea\u3067\u3042\u308c\u3070\u3001<strong>\u30ed\u30b0\u30a4\u30f3\u753b\u9762\u306e\u307f\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/strong><\/p>\n<h3>getSession\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3092false\u3068\u3057\u305f\u5834\u5408<\/h3>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\n\r\nHttpSession session=request.getSession(false);\r\n\r\n<\/pre>\n<p>\u65e2\u306b\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u78ba\u7acb\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u73fe\u5728\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u8fd4\u3057\u3001\u78ba\u7acb\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001null\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n\u306a\u306e\u3067\u3001\u901a\u5e38\u306eWeb\u30a2\u30d7\u30ea\u3067\u3042\u308c\u3070\u3001<strong>\u30ed\u30b0\u30a4\u30f3\u4ee5\u5916\u306e\u753b\u9762\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/strong><\/p>\n<p><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u5207\u308c\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u3053\u308c\u304cnull\u306b\u306a\u3063\u3066\u3044\u305f\u5834\u5408\u306f\u3001\u518d\u30ed\u30b0\u30a4\u30f3\u753b\u9762\u3092\u4fc3\u3059\u753b\u9762\u3092\u8868\u793a\u3055\u305b\u307e\u3059\u3002<\/strong><\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u307e\u305f\u3001true\u3082false\u3082\u3069\u3061\u3089\u3082\u6307\u5b9a\u3057\u306a\u304b\u3063\u305f\u5834\u5408\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067true\u3068\u3057\u3066\u52d5\u304d\u307e\u3059\u306e\u3067\u3001\u3054\u6ce8\u610f\u3092\uff01<\/strong><\/span><\/p>\n<h2>\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u6709\u52b9\u671f\u9650<\/h2>\n<p>\u30bb\u30c3\u30b7\u30e7\u30f3\u306b\u306f\u3001\u6709\u52b9\u671f\u9650\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>Tomcat\u3060\u3068\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u300130\u5206\u306b\u306a\u3063\u3066\u304a\u308a\u3001HttpSession\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u306a\u3051\u308c\u3070\u30bb\u30c3\u30b7\u30e7\u30f3\u306f\u81ea\u52d5\u7684\u306b\u7834\u68c4\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u30d6\u30e9\u30a6\u30b6\u306b\u3088\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u52d5\u4f5c\u306e\u9055\u3044<\/h2>\n<p>\u9055\u3046PC\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u306f\u7570\u306a\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u3068\u307f\u306a\u3055\u308c\u308b\u306e\u306f\u60f3\u50cf\u304c\u4ed8\u304f\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u5834\u5408\u306f\u3069\u3046\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<h3>\u540c\u3058PC\u306e\u5225\u30d6\u30e9\u30a6\u30b6\u3067\u30a2\u30af\u30bb\u30b9\u3057\u305f\u5834\u5408<\/h3>\n<p><strong>\u300c\u5225\u30bb\u30c3\u30b7\u30e7\u30f3\u300d<\/strong>\u3068\u307f\u306a\u3055\u308c\u307e\u3059\u3002\u306a\u306e\u3067\u3001\u30c6\u30b9\u30c8\u306e\u969b\u7b49\u306f\u3001\u3053\u306e\u4ed5\u7d44\u307f\u3092\u5229\u7528\u3057\u3066\u52b9\u7387\u3088\u304f\u6d3b\u7528\u3067\u304d\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u306d\u3002<\/p>\n<h3>\u540c\u3058PC\u306e\u540c\u3058\u30d6\u30e9\u30a6\u30b6\u3067\u3001\u5225\u30bf\u30d6\u3001\u5225\u30a6\u30a4\u30f3\u30c9\u30a6\u3067\u958b\u3044\u305f\u5834\u5408<\/h3>\n<p>\u3053\u308c\u306f\u3001\u57fa\u672c\u7684\u306b\u306f<strong>\u300c\u540c\u4e00\u30bb\u30c3\u30b7\u30e7\u30f3\u300d<\/strong>\u3068\u307f\u306a\u3055\u308c\u307e\u3059\u3002\uff08\u30d6\u30e9\u30a6\u30b6\u306e\u7a2e\u985e\u306b\u3088\u308a\u307e\u3059\u304c\u3001IE\u3001Firefox\u3001Chrome\u7b49\u306e\u57fa\u672c\u7684\u306a\u30d6\u30e9\u30a6\u30b6\u306f\u307e\u305a\u5927\u4e08\u592b\u3067\u3059\u3002\uff09<\/p>\n<h2>\u30bb\u30c3\u30b7\u30e7\u30f3\u30c7\u30fc\u30bf\u306f\u3069\u3053\u306b\u4fdd\u5b58\u3055\u308c\u308b\u304b\uff1f<\/h2>\n<p><span style=\"color: #ff0000;\"><strong>\u300c\u30b5\u30fc\u30d0\u30fc\u306e\u30e1\u30e2\u30ea\u300d<\/strong><\/span>\u306b\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002\u306a\u306e\u3067\u3001\u540c\u6642\u30a2\u30af\u30bb\u30b9\u6570\u304c\u591a\u3044\u5834\u5408\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u30e1\u30e2\u30ea\u306b\u8ca0\u8377\u304c\u304b\u304b\u3063\u3066\u3057\u307e\u3046\u306e\u3067\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305f\u3001\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306b\u66f8\u304d\u8fbc\u3093\u3067\u3001\u30ea\u30e2\u30fc\u30c8\u8ee2\u9001\u7b49\u3092\u3057\u305f\u3044\u5834\u5408\u306f\u3001Serializable\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u5b9f\u88c5\u3057\u3066\u3001\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306b\u66f8\u304d\u8fbc\u3080\u3068\u3044\u3046\u5b9f\u88c5\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Java\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u3067\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u78ba\u7acb\u3059\u308b\u5834\u5408\u306f\u4e0b\u8a18\u306e\u69cb\u6587\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002 Java\u3067\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u7ba1\u7406\u306f\u3001\u300cjavax.servlet.http.HttpSession\u300d\u3068\u3044\u3046\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u6a5f\u80fd\u306b\u306a\u308a\u3001\u300cHttpSe [&hellip;]","protected":false},"author":1,"featured_media":506,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/381"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=381"}],"version-history":[{"count":7,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/381\/revisions"}],"predecessor-version":[{"id":1064,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/381\/revisions\/1064"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/media\/506"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=381"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}